Use WASD or arrow keys to move. Press p to pause. Eat objects smaller than you to grow, but avoid larger objects, as they will make you shrink! Shrink too much and it's game over! If an object starts changing colors, it means you have just become big enough to eat it.
Other games in the series: Mega Spinosaurus Attack 1 https://scratch.mit.edu/projects/1194135886 Mega Spinosaurus Attack 2 https://scratch.mit.edu/projects/1202492887 Mega Spinosaurus Attack 3 https://scratch.mit.edu/projects/1248234919